Two stage magnetic ordering and spin idle behavior of the coordination polymer Co-3(OH)(2)(C4O4)(2)center dot 3H(2)O determined using neutron diffraction

We report the magnetic structure of two of the magnetically ordered phases of Co-3(OH)(2)(C4O4)2 center dot 3H(2)O, a coordination polymer that consists of a triangular framework decorated with anisotropic Co(II) ions. The combination of neutron diffraction experiments and magnetic susceptibility data allows us to identify one phase as displaying spin idle behavior, where only a fraction of the moments order at intermediate temperatures, while at the lowest temperatures the system orders fully. This novel magnetic behavior is discussed within the framework of a simple Hamiltonian and representational analysis and rationalizes this multiphase behavior by considering the combination of frustration and anisotropy. © 2011, American Chemical Society

Keywords

Neutron diffraction, Polymers, Magnetic susceptibility, Spin, Hamiltonians, Anisotropy

Citation

Mole, R. A., Stride, J. A., Henry, P. F., Hoelzel, M., Senyshyn, A., Alberola, A., Garcia, C. J. G., Raithby, P. R., & Wood, P. T. (2011). Two stage magnetic ordering and spin idle behavior of the coordination polymer Co-3(OH)(2)(C4O4)(2)center dot 3H(2)O determined using neutron diffraction. Inorganic Chemistry, 50(6), 2246-2251. doi:10.1021/ic101897a